Brominated flame retardants in atmospheric fine particles in the Beijing-Tianjin-Hebei region, China: Spatial and temporal distribution and human exposure assessment
Brominated flame retardants in atmospheric fine particles in the Beijing-Tianjin-Hebei region, China: Spatial and temporal distribution and human exposure assessment
复制标题
中国京津冀地区大气细颗粒物中溴系阻燃剂的时空分布及人体暴露评估
DOI：
10.1016/j.ecoenv.2018.12.080
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发表时间：
2019
影响因子：
6.8
通讯作者：
Jiang Guibin
中科院分区：
文献类型：
--
作者：
Zhang Weiwei;Wang Pu;Zhu Ying;Yang Ruiqiang;Li Yingming;Wang Dou;Matsiko Julius;Han Xu;Zhao Junpeng;Zhang Qinghua;Zhang Jianqing;Jiang Guibin
为了解京津冀地区大气细颗粒物(PM2.5)中新型溴化阻燃剂(NBFR)和多溴联苯醚(PBDEs)的存在情况，对京津冀地区5个采样点进行了全年(2016年4月至2017年3月)的PM2.5采样。大气PM2.5中∑9NBFR的浓度范围为0.63-104 pg/m~3(15.6 ± 16.8 pg/m~3)，而∑-9多溴联苯醚(不包括BDE-209)的浓度范围为0.05-19.1 pg/m~3(2.9 ± 3.8 pg/m~3)和BDE-209的浓度范围为0.88~138 pg/m~3(22 ± 28 pg/m~3)。北京市和石家庄市城区采样点的NBFR和PBDEs含量较高。十溴二苯乙烷和BDE209是优势化合物，在∑9NBFR和∑10PBDEs中的相对丰度分别为72%和90%。总体而言，夏季的大多数目标BFR水平低于其他季节。然而，在BTH地区的大气PM2.5样品中，DBDPE和BDE-209的水平没有显著的季节差异。BFR浓度与PM2.5浓度呈显著正相关。人类通过吸入的日常接触表明，儿童比成年人更有可能遭受BFR的不利影响。此外，居住在BTH地区采样点附近的居民可能面临接触BDE-209和NBFR的高风险。
Atmospheric fine particle (PM2.5) samples were collected over a whole year (April 2016 - March 2017) across five sampling locations in the Beijing-Tianjin-Hebei (BTH) region, to investigate the occurrence of novel brominated flame retardants (NBFRs) and polybrominated diphenyl ethers (PBDEs). The concentrations of ∑9NBFRs were in the range of 0.63–104 pg/m3(15.6 ± 16.8 pg/m3) in atmospheric PM2.5, while the levels of ∑9PBDEs (excluding BDE-209) ranged from 0.05 to 19.1 pg/m3(2.9 ± 3.8 pg/m3) and BDE-209 concentrations ranged from 0.88 to 138 pg/m3(22 ± 28 pg/m3). Relatively higher levels of NBFRs and PBDEs were found at urban sampling sites in Beijing City and Shijiazhuang City. Decabromodiphenylethane (DBDPE) and BDE-209 were the dominant compounds with the relative abundances of 72% in ∑9NBFRs and 90% in ∑10PBDEs, respectively. Generally, the levels of most target BFRs in summer were lower than those in other seasons. However, there were no notable seasonal differences in levels of DBDPE and BDE-209 in atmospheric PM2.5samples across the BTH region. Significant and positive correlations were found between the concentrations of BFRs and PM2.5. Daily human exposure via inhalation revealed that children have a higher probability of suffering from the adverse effects of BFRs than that of adults. In addition, residents living near sampling locations across the BTH region may suffer high exposure risks to BDE-209 and NBFRs.